Voice control device, voice control method and program

ABSTRACT

According to an illustrative embodiment, an information processing apparatus is provided. The information processing apparatus includes a communication device to receive plural pieces of tag information corresponding to respective positions within a target area, the target area having a position defined by the position of the apparatus; and an output device to output a plurality of sounds such that for each sound at least a portion of the sound overlaps with at least a portion of another of the sounds, each of the sounds being indicative of a respective piece of tag information.

CROSS-REFERENCE TO RELATED APPLICATION

The present application is a continuation application of U.S.application Ser. No. 14/353,856, filed Apr. 24, 2014, which is anational phase entry under 35 U.S.C. §371 of International ApplicationNo. PCT/JP2012/005291 filed Aug. 23, 2012, published on May 16, 2013 asWO 2013/069178 A1, which claims priority from Japanese PatentApplication No. JP 2011-245357 filed in the Japanese Patent Office onNov. 9, 2011.

TECHNICAL FIELD

The present disclosure relates to voice control devices, voice controlmethods and programs.

BACKGROUND ART

In these days, applications employing AR (augmented reality) technologycome under the spotlight accompanying the popularization of mobileterminals equipped with an imaging device and a display. For example, asan application employing the AR technology, an AR application which addstag information like a picture, a text or a voice to a picture image ofan actual space based on the position of the mobile equipment.

An AR application allows a user to view and operate a piece of taginformation added to the actual space. However, as the number of tags ofinformation added to the actual space increases, since the visibility ofthe screen decreases, it is difficult for the user to find a desiredpiece of information. With respect to this problem, JP-A-2010-49158discloses a voice control device which guides a user with voice inaccordance with the relationship between the mobile terminal and anobject position.

SUMMARY Technical Problem

However, in the case when plural pieces of tag information, which areassociated with an area surrounding the mobile terminal, are output inseries with voice, as the number of tags of information increases, ittakes a considerably long time to output user's favorite taginformation. It is not easy for the user to extract a piece of desiredtag information.

The present disclosure proposes a novel and improved voice controldevice, a voice control method and a program which enables a swiftextraction of a piece of information to be output with voice from pluralpieces of information.

Solution to Problem

According to an illustrative embodiment, an information processingapparatus is provided. The information processing apparatus includes acommunication device to receive plural pieces of tag informationcorresponding to respective positions within a target area, the targetarea having a position defined by the position of the apparatus; and anoutput device to output a plurality of sounds such that for each soundat least a portion of the sound overlaps with at least a portion ofanother of the sounds, each of the sounds being indicative of arespective piece of tag information.

Advantageous Effects of Invention

As described above, the present disclosure makes it possible to swiftlyextract a piece of information to be output with voice from pluralpieces of information.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 illustrates a configuration of a voice control system accordingto an embodiment of the present disclosure;

FIG. 2 illustrates a picture image of an actual space in which taginformation is added;

FIG. 3 illustrates a specific example of utilization mode of a mobileterminal according to a first embodiment;

FIG. 4 is a functional block diagram illustrating a configuration of amobile terminal according to the first embodiment of the presentdisclosure;

FIG. 5 illustrates a specific example of a target area which is setthrough an area setting section;

FIG. 6 illustrates a specific example of a target area in a case whenthe density of tag information around the mobile terminal is high;

FIG. 7 illustrates a specific example of a target area in a case whenthe density of tag information around the mobile terminal is low;

FIG. 8 illustrates rearranged tag information;

FIG. 9 illustrates a specific example of voice control through a voicecontrol section;

FIG. 10 illustrates a specific example of a list of tag information;

FIG. 11 is a flowchart showing the operation of the mobile terminalaccording to the first embodiment of the present disclosure;

FIG. 12 illustrates a mobile terminal and a voice output unit accordingto a second embodiment of the present disclosure;

FIG. 13 is a functional block diagram showing a configuration of amobile terminal according to the second embodiment;

FIG. 14 illustrates an example of display according to the secondembodiment; and

FIG. 15 illustrates a hardware configuration of a mobile terminal.

DESCRIPTION OF EMBODIMENTS

Hereinafter, preferred embodiments of the present disclosure will bedescribed in detail with reference to the appended drawings. Note that,in this specification and the appended drawings, structural elementsthat have substantially the same function and structure are denoted withthe same reference numerals, and repeated explanation of thesestructural elements is omitted.

Preferred embodiments of the present disclosure will be described indetail below while referring to appended drawings. In this specificationand drawings, composing elements which have substantially identicalstructure and function will be given with identical reference numeral tothereby avoid duplicated explanation.

Also, in the specification and drawings, a plurality of composingelements which have substantially identical structure and function maybe discriminated from each other by appending different alphabet behindthe identical reference numeral. However, when a plurality of composingelements which have substantially identical structure and function maynot be discriminated from each other, only identical reference numeralwill be given.

Description of the present disclosure will be made in the followingorder.

1. Basic configuration of voice control system

2. First Embodiment

2-1. Outline of the first embodiment2-2. Configuration of mobile terminal according to the first embodiment2-3. Operation of mobile terminal according to the first embodiment

3. Second Embodiment

4. Hardware configuration of the mobile terminal

5. Conclusion 1. Basic Configuration of Voice Control System

The technology described in the present disclosure may be implemented ina various modes as will be described in detail in “2. First embodiment”to “3. Second embodiment” as examples. Voice control device (mobileterminal 20) according to the embodiment includes:

A. an information obtaining section (a communication section 228 and aninformation analysis section 236) that obtains a piece of informationwhich is associated with a position in a surrounding area; andB. a voice control section (240) that performs voice control so that,when plural pieces of information are obtained by the informationobtaining section, the plural pieces of information are output at atime.

First of all, a basic configuration of a voice control system which iscommon to the embodiments will be described referring to FIG. 1.

FIG. 1 illustrates a configuration of a voice control system accordingto an embodiment of the present disclosure. The voice control systemaccording to the embodiment of the present disclosure includes an ARserver 10 and a mobile terminal 20 as shown in FIG. 1.

The AR server 10 and the mobile terminal 20 are connected to each othervia a communication network 12 and are capable of communicating variouskinds of information therebetween via the communication network 12. Thecommunication network 12 is a wired or wireless transmission channel ofinformation transmitted from apparatuses connected to the communicationnetwork 12. For example, the communication network 12 may include apublic network such as Internet, telephone network, satellitecommunication network or various kinds of LANs (local area network), WAN(wide area network) including Ethernet (registered trademark). Also, thecommunication network 12 may include a leased line network such asIP-VPN (Internet protocol-virtual private network).

The AR server 10 stores positional information and tag information whileassociating with each other, and transmits the positional informationand the tag information to the mobile terminal 20 via the communicationnetwork 12. For example, receiving from the mobile terminal 20 a pieceof positional information which represents a present position of themobile terminal 20, the AR server 10 transmits to the mobile terminal 20a piece of positional information and tag information which representthe location around the mobile terminal 20. Also, receiving from themobile terminal 20 a piece of directional information which represents adirection in which a particular portion of the mobile terminal 20 isoriented, the AR server 10 may transmit to the mobile terminal 20 apiece of positional information and tag information representing apositional direction represented by the directional information viewedfrom the present position of the mobile terminal 20.

As for the tag information, image information such as picture or motionpicture, text information and voice information are conceivable, forexample. The tag information may be a piece of PR information on alocation represented by the associated positional information or a pieceof information which is provided and uploaded by an ordinary user withrespect to the location represented by the associated positionalinformation.

The mobile terminal 20 obtains a piece of positional information and taginformation with respect to the surrounding area of the presentposition, and provides the tag information to the user. For example, themobile terminal 20 transmits to the AR server 10 a piece of positionalinformation representing the present position to the AR server 10 toobtain a piece of tag information and positional information withrespect to the surrounding area of the present position from the ARserver 10. And the mobile terminal 20 may add a piece of tag informationto a picture image of the actual space and displays the same on thetouch panel 22.

The mobile terminal 20 includes a speaker 24 as an example of a voiceoutput section for outputting voices; and a microphone 26 as an exampleof a voice input section for picking up voices. In this specification,in the mobile terminal 20, the end where the speaker 24 is disposed willbe referred to as upper side US; and the end where the microphone 26 isdisposed will be referred to as lower side LS.

FIG. 1 shows a smartphone as an example of the mobile terminal 20.However, the mobile terminal 20 is not limited to the smartphone. Forexample, the mobile terminal 20 may be a PDA (personal digitalassistants), a mobile phone, a mobile music reproducer, a mobile imageprocessor, or a mobile game machine.

Background of the Embodiment

Accompanying the popularization of mobile terminals such as smartphone,applications, which add tag information such as picture, text and/orvoice to a picture image of an actual space as described above, aregetting much attention. Using such application, for example, a pictureimage of an actual space, to which plural pieces of tag information areadded as shown in FIG. 2, is displayed. Therefore, the user is allowedto view and operate the plural pieces of tag information which arehardly obtained from the actual space.

However, when the number of the pieces of tag information which areadded to the actual space increases, since the visibility of the screendecreases, it is difficult for the user to find desired information. Itis conceivable to output tag information with voices. In the case theplural pieces of tag information associated with area surrounding themobile terminal are output with voices in series, as the number of tagsof information increases, since it takes a considerably long time tooutput a piece of tag information which the user is interested in, it isnot easy for the user to extract the desired tag information.

Under such circumstances as described above, the embodiment of thepresent disclosure has been proposed. The embodiment enables a swiftextraction of information from plural pieces of tag information whichare output with voices. A detailed description will be made below on afirst embodiment and a second embodiment of the present disclosure whichprovide such effect.

2. First Embodiment 2-1. Outline of the First Embodiment

It is known the fact that, even under circumstances filled with variouskinds of noises, a person is able to unintentionally recognize words andconversation which he/she is interested in (cocktail-party effect). Amobile terminal 20-1 according to the first embodiment of the presentdisclosure utilizes the cocktail-party effect. When the user is providedwith the tag information output with voices, the user can swiftlyextract the favorite tag information. Referring to FIG. 3, a specificexample of a utilization mode of the mobile terminal 20-1 according tothe first embodiment will be described below.

FIG. 3 illustrates a specific example of utilization mode of the mobileterminal 20-1 according to the first embodiment. When the user holds thespeaker 24 of the mobile terminal 20-1 over his/her ear as shown in FIG.3, the mobile terminal 20-1 simultaneously performs voice output ofplural pieces of tag information associated with a position in asurrounding area. In particular, the mobile terminal 20-1 sets an targetarea including a direction in which the lower side LS as a particularportion of the mobile terminal 20-1 is oriented as a reference, andoutputs simultaneously plural pieces of tag information TA to TC whichare associated with positions P1 to P3 in the target area. That is, themobile terminal 20-1 simultaneously a performs voice output of piece oftag information TA “It's cool! KKK's album.” a piece of tag informationTB “Delicious cakes! at FFF Cafe.”, a piece of tag information TC“Actress A appears at BBB!”.

With this, when the user is interested in actress A for example, he/sheswiftly listen to the tag information relevant to the actress A base onthe cocktail-party effect, and knows that the actress A appears in adirection the lower side LS of the mobile terminal 20-1 is oriented. Themobile terminal 20-1 may outputs the tag information with a smallervolume level as the distance between the position associated with thetag information and the present position increases. In this case, theuser can sense the distance between the position associated with thepiece of desired tag information and the present position.

2-2. Configuration of the Mobile Terminal the First Embodiment

Outline of the first embodiment of the present disclosure has beendescribed above. Subsequently, configuration of the mobile terminal 20-1according to the first embodiment of the present disclosure will bedescribed in detail.

FIG. 4 is a functional block diagram showing a configuration of themobile terminal 20-1 according to the first embodiment of the presentdisclosure. As shown in FIG. 4, the mobile terminal 20-1 according tothe first embodiment of the present disclosure includes the touch panel22, the speaker 24, a GPS 220, an acceleration sensor 224, thecommunication section 228, an area setting section 232, the informationanalysis section 236, a voice control section 240 and a display controlsection 244. The mobile terminal 20-1 may include a direction sensor(not shown), such as an electronic compass. The direction sensor may beincluded in addition to the acceleration sensor 224, or as analternative to the acceleration sensor 224.

GPS

The GPS (global positioning system) 220 receives a navigation messagewhich is transmitted from an artificial satellite to obtain a presentposition of the mobile terminal 20-1 based on the reception result ofthe navigation message. The GPS 220 is given here just an example of acomponent for obtaining the present position of the mobile terminal20-1. The present position of the mobile terminal 20-1 may be obtainedby other configuration. For example, the mobile terminal 20-1 mayestimate the present position based on the intensity of received Wi-Firadiowaves which are transmitted from surroundings wirelesscommunication devices, or the present position may be obtained based onthe input operation made by the user.

Acceleration Sensor

The acceleration sensor 224 measures the acceleration of the mobileterminal 20-1. Based on the measurement result by the accelerationsensor 224, the orientation of the mobile terminal 20-1; for example, adirection the lower side LS of the mobile terminal 20-1 is oriented canbe estimated.

Communication Section

The communication section 228 is an interface with the AR server 10 thatexchanges various kinds of information with the AR server 10. Forexample, the communication section 228 transmits a piece of positionalinformation of the mobile terminal 20-1 obtained by the GPS 220 to theAR server 10, and receives a piece of tag information associated witharea surrounding the mobile terminal 20-1 from the AR server 10 alongwith the positional information. Also, in addition to the positionalinformation of the mobile terminal 20-1, the communication section 228may transmit a measurement result made by the acceleration sensor 224,the direction sensor, or both the acceleration sensor 224 and thedirection sensor to the AR server 10. In this case, a piece of taginformation, which is associated with a location in a direction thelower side LS of the mobile terminal 20-1 is oriented, can be receivedfrom the AR server 10. Thus, the communication section 228 or theinformation analysis section 236, which will be described later,functions as an information obtaining section for obtaining the taginformation for outputting voice information.

In this embodiment, an example is given, in which the mobile terminal20-1 obtains the tag information from the AR server 10. However, theembodiment is not limited to the above. For example, the mobile terminal20-1 may have a database in which the positional information and the taginformation are associated with each other, and may obtain the taginformation associated with the area surrounding the mobile terminal20-1 from the database.

Area Setting Section

The area setting section 232 sets an target area relevant to the voiceoutput of the tag information based on the positional information of themobile terminal 20-1 supplied from the GPS 220 and the measured resultobtained by the acceleration sensor 224, the direction sensor, or boththe acceleration sensor 224 and the direction sensor. The object of thevoice output is the tag information that is associated with thepositional information within the target area set by the area settingsection 232. Here, referring to FIG. 5, a particular description is madebelow on the target area set by the area setting section 232.

FIG. 5 illustrates an example of a specific target area that is set bythe area setting section 232. The area setting section 232 may set as atarget area, for an example, a sector area which is represented by aradius “r” and an angle “P” with respect to a direction the lower sideLS of the mobile terminal 20-1 is oriented as a reference.

Here, if too many pieces of tag information, which are simultaneouslyoutput in a form of sound, are included within the target area, thecocktail-party effect may decrease causing it difficult for the user toapprehend the favorite tag information. Contrarily, if the number ofpieces of tag information which are simultaneously output in a form ofsound is too small, the possibility of outputting user's favorite taginformation also decreases. Therefore, the efficiency of informationextraction decreases.

Therefore, the area setting section 232 may change the range of thetarget area in accordance with the density of plural pieces of taginformation within the area. For example, the area setting section 232may set the target area so that the number of pieces of tag information,which are associated with the positional information within the targetarea, is larger than a lower limit value, smaller than an upper limitvalue, or equal to a predetermined number. Referring to FIG. 6 and FIG.7, a particular description will be made on this point.

FIG. 6 illustrates a specific example of the target area in which thedensity of plural pieces of tag information in area surrounding themobile terminal 20-1 is too high. While FIG. 7 illustrates a specificexample of the target area in which the density of plural pieces of taginformation in the area surrounding the mobile terminal 20-1 is too low.When the density of the tag information in the surrounding area is toohigh as shown in FIG. 6, the area setting section 232 may set the targetarea to be narrower by reducing the radius “r” and the angle “P”.Contrarily, when the density of the tag information in the surroundingarea is too low as shown in FIG. 7, the area setting section 232 may setthe target area to be wider by increasing the radius “r” and the angle“P”.

By configuring the area setting section 232 as described above, it ispossible to enhance the level of comprehension of tag information forthe user and to ensure the efficiency of the information extraction.

Information Analysis Section

The information analysis section 236 extracts several pieces of taginformation, each associated with a piece of positional informationwithin the target area set by the area setting section 232, from pluralpieces of tag information within the surrounding area received by thecommunication section 228. Also, the information analysis section 236analyzes each position associated with the extracted tag information andthe distance from the mobile terminal 20-1 and the angle, and suppliesthe analyzed result to the voice control section 240.

Voice Control Section

The voice control section 240 controls the voice output from the speaker24 of the tag information extracted by the information analysis section236. In particular, the voice control section 240 performs voice controlso that the tag information extracted by the information analysissection 236 is simultaneously output from the speaker 24 (first controlmode). With this configuration, it is made possible for the user toefficiently apprehend his/her favorite tag information from pluralpieces of tag information which are output simultaneously base on thecocktail-party effect. Also, the voice control section 240 may performthe following controls; i.e., example A to example E when outputting thevoice tag information.

Control Example A

The voice control section 240 may control the volume level of the taginformation in accordance with the distance between the mobile terminal20-1 and the position associated with the tag information. For example,the voice control section 240 may control so that the volume level ofthe tag information becomes smaller as the distance between the mobileterminal 20-1 and the position associated with the tag informationincreases. This configuration makes it possible for the user toapprehend a sense of distance between the present position and theposition associated with the tag information.

Control Example B

The voice control section 240 may perform the voice control so that eachof plural pieces of tag information is output with sound characteristicsdifferent from each other. For example, the voice control section 240may perform the voice control so that each of the plural pieces of taginformation are output with a basic frequency or sound quality differentfrom each other. This configuration ensures the cocktail-party effect tofunction more effectively.

Control Example C

When the tag information is other than voice information, the voicecontrol section 240 may generate a piece of voice information from thetag information. For example, when the tag information is a piece oftext information, the voice control section 240 may generate a piece ofvoice information corresponding to the text information. Also, when thetag information is a picture tag, the voice control section 240 maygenerate a piece of voice information corresponding to a comment addedto the picture tag. This configuration enables the voice control section240 to handle many pieces of tag information as the object of voiceoutput.

Control Example D

The voice control section 240 may extract keywords from the respectivepieces of tag information and perform the voice control so as todisperse timing of outputting keyword of the tag information. Forexample, it is assumed that the keyword of the tag information TA: “IV scool! KKK's album” is “KKK”; the keyword of the tag information TB:“Delicious cakes! At FFF Cafe.” is “FFF Cafe”; and the keyword of thetag information TC: “Actress A appears at BBB!” is “actress A”. In thiscase, when these pieces of tag information are output as they are, thekeyword “KKK” of the tag information TA and the keyword “FFF Cafe” ofthe tag information TB are output simultaneously. In this case, thevoice control section 240 may rearrange the content of the taginformation TB as shown in FIG. 8 so that the keyword “KKK” of the taginformation TA is output at a different timing from that of the keyword“FFF Cafe” of the tag information TB. This configuration enables thekeywords of the tag information to be apprehended more easily.

Control Example E

The voice control section 240 may rearrange the content of the taginformation based on the user's preference so that user's favorite wordis output first. In the case, when the user is interested in, forexample, “actress A”, the voice control section 240 may rearrange thecontent of the tag information TC like this; “Actress A! appears at BBB”so that “Actress A” is output first. This configuration enables the userto extract his/her favorite tag information at an earlier timing.

The voice control section 240 switches the voice control to a secondmode, in which plural pieces of tag information extracted by theinformation analysis section 236 are output in series based on apredetermined user operation such as tapping. In this mode, the user isallowed to select a desired piece of tag information by performing afirst user operation while the desired tag information is being outputwith voice. The voice control section 240 may switch the tag informationof an object to be output with voice responding to a second useroperation like flicking. A particular description will be made on aseries of such operation below referring to FIG. 9.

FIG. 9 illustrates a specific example of the voice control by the voicecontrol section 240. When the user makes a tapping operation whileplural pieces of tag information are being simultaneously output asshown in FIG. 9, the voice control section 240 switches the voicecontrol mode in which plural pieces of tag information are output inseries. The voice control section 240 may perform the voice control sothat plural pieces of tag information are output from plural pieces oftag information each associated with a position closer to the mobileterminal 20-1 in series. The size of the characters corresponds to thevolume level as shown in FIG. 9.

Then, while a piece of desired tag information is being output withvoice, when a shaking operation is made to shake the mobile terminal20-1, the desired tag information is select. For example, when the usermakes a shaking operation while the tag information TB is being output,the display control section 244 displays the position associated withthe tag information TB on the touch panel 22.

As described above, the user selects a group which includes a piece offavorite tag information based on the cocktail-party effect, and thenspecifies the favorite tag information from the group to thereby obtaindetailed information of the favorite tag information.

Display Control Section

The display control section 244 generates various display screens anddisplays the generated display screen on the touch panel 22.Particularly, in the second mode in which plural pieces of taginformation are output in series, when an operation like shakingoperation is made by the user, the display control section 244 accordingto the embodiment controls the display of a position associated with thetag information output with voice when the shaking operation is made(FIG. 9).

The above description has been made on the second mode in which pluralpieces of tag information are output in series as the method forallowing the user to select a piece of favorite tag information from agroup of plural pieces of tag information. However, the method to allowthe user to select favorite tag information from a group is not limitedto the above. For example, when a predetermined user operation is madein the first mode, in which plural pieces of tag information aresimultaneously output, the display control section 244 may fix theplural pieces of tag information at a point when the user operation ismade and display a list of the fixed plural pieces of tag information onthe touch panel 22 as shown in FIG. 10. This configuration enables theuser to select desired tag information from the list of plural pieces oftag information.

2-3. Operation of Mobile Terminal According to the First Embodiment

The configuration of the mobile terminal 20-1 according to the firstembodiment of the present disclosure has been described above. Now,referring to FIG. 11, operation of the mobile terminal 20-1 according tothe first embodiment of the present disclosure will be described below.

FIG. 11 is a flowchart showing the operation of the mobile terminal 20-1according to the first embodiment of the present disclosure. As shown inFIG. 11, the GPS 220 of the mobile terminal 20-1 measures the presentposition of the mobile terminal 20-1, and the acceleration sensor 224measures the orientation of the lower side LS of the mobile terminal20-1 (S304). Then, the communication section 228 transmits a piece ofpositional information of the mobile terminal 20-1 to the AR server 10to thereby obtain a piece of tag information associated with the areasurrounding the mobile terminal 20-1 from the AR server 10 (S308). Inaddition, the direction sensor may measure the direction in which themobile terminal 20-1 is pointing, and the measured direction may beincluded in the positional information.

On the other hand, the area setting section 234 sets a target area withrespect to the voice output of a the tag information based on thepositional information of the mobile terminal 20-1 and either one orboth of the measurement result obtained by the acceleration sensor 224and the measurement result obtained from the direction sensor. Afterthat, the information analysis section 236 extracts a piece of taginformation within the target area from the tag information associatedwith the area surrounding the mobile terminal 20-1 (S316). The voicecontrol section 240 performs the voice control so that plural pieces oftag information within the target area are simultaneously output fromthe speaker 24 (S320).

After that, when the user makes a tapping operation on the touch panel22 (S324), the voice control section 240 switches the voice control modeso that plural pieces of tag information within the target area areoutput in series (S328). When a shaking operation is made by the user(S332), the display control section 244 displays on the touch panel 22 adisplay screen representing a position associated with the taginformation being output with voice when the shaking operation is made(S336).

As described above, according the first embodiment of the presentdisclosure, by simultaneously outputting the plural pieces of taginformation, the user can select a group including his/her favorite taginformation based on the cocktail-party effect.

3. Second Embodiment

Subsequently, the second embodiment of the present disclosure will bedescribed below. The second embodiment of the present disclosure isdifferent from the first embodiment in a point that the voice output ismade not through the speaker 24 but through a wearable voice outputunit. The second embodiment of the present disclosure will be describedin detail below.

FIG. 12 illustrates a mobile terminal 20-2 according to the secondembodiment and a voice output unit 30 according to the presentdisclosure. As shown in FIG. 12, the mobile terminal 20-2 according tothe second embodiment transmits voice signals to the voice output unit30, and the voice output unit 30 outputs the voice signals received fromthe mobile terminal 20-2 with stereo sounds.

FIG. 12 illustrates an example in which the mobile terminal 20-2 and thevoice output unit 30 are connected to each other via near fieldcommunication. However, the mobile terminal 20-2 and the voice outputunit 30 may be connected to each other via a wire. FIG. 12 illustrates aheadphone as an example of the wearable voice output unit 30. However,the voice output unit 30 is not limited to a headphone but may beearphones, for example.

Configuration of Mobile Terminal According to the Second Embodiment

Subsequently, referring to FIG. 13, configuration of the mobile terminal20-2 according to the second embodiment will be described below. FIG. 13is a functional block diagram showing a configuration of the mobileterminal 20-2 according to the second embodiment. As shown in FIG. 13,the mobile terminal 20-2 according to the second embodiment includes thetouch panel 22, the GPS 220, the acceleration sensor 224, thecommunication section 228, the area setting section 234, the informationanalysis section 236, the voice control section 240, the display controlsection 246, a sound source setting section 248, a voice processingsection 252 and a proximity communication section 256. Since theconfiguration of the touch panel 22, the GPS 220, the accelerationsensor 224, the communication section 228 and the voice control section240 is substantially identical to those of the first embodiment,detailed description thereof is omitted here. The mobile terminal 20-2may include a direction sensor (not shown), such as an electroniccompass. The direction sensor may be included in addition to theacceleration sensor 224, or as an alternative to the acceleration sensor224.

The area setting section 234 sets a target area with respect to thevoice output of the tag information based on the positional informationof the mobile terminal 20-1 supplied from the GPS 220 and either one orboth of the measurement result obtained by the acceleration sensor 224and the measurement result obtained from the direction sensor. Here,different from the first embodiment, the user does not have to hold thespeaker 24 over the ear, the area setting section 234 sets the targetarea using a direction in which, not the lower side LS but the upperside US, for example, of the mobile terminal 20-2 is oriented as areference.

The sound source setting section 248 sets a virtual sound sourceposition for each of plural pieces of tag information extracted by theinformation analysis section 236. For example, the sound source settingsection 248 may set positions each associated with plural pieces of taginformation at the respective virtual sound source positions. The soundsource setting section 248 may set positions different from thepositions associated with plural pieces of tag information as virtualsound source positions for the plural pieces of tag information. Thus,by setting virtual sound source positions different from each other tothe plural pieces of tag information, it is expected that thecocktail-party effect is enhanced.

The voice processing section 252 performs voice processing on eachplural pieces of tag information so that virtual sound source positionsset by the sound source setting section 248 are apprehended by the useras sound source positions. This processing is performed in accordancewith the orientation of the user. Therefore, the user may wear a sensorfor detecting user's orientation, or the orientation of the upper sideUS of the mobile terminal 20-2 may be handled as the orientation of theuser.

The proximity communication section 256 transmits the voice signalsprocessed by the voice processing section 252 to the voice output unit30. The voice output unit 30 outputs the voice signals received from theproximity communication section 256 with stereo sounds.

The display control section 246 displays plural pieces of taginformation on the touch panel 22 while plural pieces of tag informationare being output simultaneously from the voice output unit 30. Here, thedisplay control section 246 may perform display control so that theplural pieces of tag information are displayed at each of the virtualsound source positions with respect to the present position as thereference which are set by the sound source setting section 248 as shownin FIG. 14. This configuration allows the user also to apprehendvisually the positions of the plural pieces of tag information, which isapprehended by hearing.

4. Hardware Configuration of Mobile Terminal

Embodiments of the present disclosure have been described in detail.Above-described information processing by the mobile terminal 20according to the embodiments of the present disclosure is achieved bycollaboration between the software and the hardware of the mobileterminal 20. The hardware configuration of the mobile terminal 20 willbe described below referring to FIG. 15.

FIG. 15 is an explanatory view showing the hardware configuration of themobile terminal 20. As shown in FIG. 15, the mobile terminal 20 includesa central processing unit (CPU) 201, a read only memory (ROM) 202, arandom access memory (RAM) 203, an input apparatus 208, an outputapparatus 210, a storage apparatus 211, a drive 212, an imagingapparatus 213, and a communication apparatus 215.

The CPU 201 functions as an arithmetic processing unit and controlapparatus and controls overall operations of the mobile terminal 20according to various programs. The CPU 201 may also be a microprocessor.The ROM 202 stores programs and operation parameters used by the CPU201. The RAM 203 temporarily stores a program used for execution of theCPU 201 and parameters that suitably change during execution thereof.These elements are mutually connected by a host bus constructed from aCPU bus or the like.

The input apparatus 208 includes an input unit used by the user to inputinformation such as a mouse, keyboard, touch panel, button, microphone,switch, and lever and an input control circuit that generates an inputsignal based on input from the user and outputs the input signal to theCPU 201. The user of the mobile terminal 20 can input various kinds ofdata into the mobile terminal 20 or instruct the mobile terminal 20 toperform a processing operation by operating the input apparatus 208.

The output apparatus 210 includes, for example, a display apparatus suchas a liquid crystal display (LCD) apparatus, organic light emittingdiode (OLED) apparatus, and lamp. Further, the output apparatus 210includes a sound output apparatus such as a speaker and headphone. Forexample, the display apparatus displays captured images or generatedimages. On the other hand, the sound output apparatus converts sounddata or the like into sound and outputs the sound.

The storage apparatus 211 is an apparatus for data storage configured asan example of a storage unit of the mobile terminal 20 according to thepresent embodiment. The storage apparatus 211 may contain a storagemedium, a recording apparatus that records data in the storage medium, areading apparatus that reads data from the storage medium, or a deletionapparatus that deletes data recorded in the storage medium. The storageapparatus 211 stores programs executed by the CPU 201 and various kindsof data.

The drive 212 is a reader/writer for a storage medium and is attached tothe mobile terminal 20 internally or externally. The drive 212 readsinformation stored in a removable storage medium 23 such as an insertedmagnetic disk, optical disk, magneto-optical disk, and semiconductormemory and outputs the information to the RAM 203. The drive 212 canalso write data into the removable storage medium 23.

The imaging apparatus 213 includes an imaging optical system such as ashooting lens that condenses light and a zoom lens and a signalconversion element such as a charge coupled device (CCD) andcomplementary metal oxide semiconductor (CMOS). The imaging opticalsystem condenses light emitted from a subject to form a subject image ina signal conversion unit and the signal conversion element converts theformed subject image into an electric image signal.

The communication device 215 is a communication interface constitutedwith a communication device and the like to be connected to acommunication network 12, for example. Here, the communication device215 may be a wireless local area network (LAN) compatible communicationdevice, a LTE (Long Term Evolution) compatible communication device or awired communication device to perform communication with a cable.

5. Conclusion

As described above, according to the embodiments of the presentdisclosure, by simultaneously outputting plural pieces of taginformation, the user can swiftly select a group including his/herfavorite tag information base on the cocktail-party effect. After that,the user specifies his/her favorite tag information from the groupvisually or by hearing to thereby obtain detailed information of thefavorite tag information.

Also, according to the present disclosure, in the case the taginformation is a piece of information provide by an ordinary user whileassociating the same with the present position, the user can apprehend asense of distance from the ordinary user based on the volume level ofthe output tag information. Moreover by applying the tag information ofthe present disclosure to a mail or chat associated with the positionalinformation of the other party, it is possible for the use to apprehenda direction and distance of the other party.

Preferred embodiments of the present disclosure have been describedabove in detail while referring to appended drawings. However, thetechnical range of the present disclosure is not limited to theabove-described examples. It is clear that those skilled in the art ofthe present disclosure can easily conceive various modifications andcorrections within a range of the technical sprit disclosed in claims.It should be accordingly understood that such modifications andcorrections belong to the technical range of the present disclosure.

For example, the steps of the processing of the mobile terminal 20 inthis specification may not be processed in time series described in theflowchart. For example, the steps in the processing of the mobileterminal 20 may be processed in an order different from the orderdescribed in the flowchart, or may be processed parallely.

Moreover, it is possible to create a computer program that causes thehardware mounted in the mobile terminal 20 including CPU 201, the ROM202 and the RAM 203 or the like to function same as the above-describedconfigurations of the mobile terminal 20. A recording media storing thecomputer program is also provided.

Additionally, the present technology may also be configured as below.

(1) An information processing apparatus including: a communicationdevice to receive plural pieces of tag information corresponding torespective positions within a target area, the target area having aposition defined by the position of the apparatus; and an output deviceto output a plurality of sounds such that for each sound at least aportion of the sound overlaps with at least a portion of another of thesounds, each of the sounds being indicative of a respective piece of taginformation.(2) The apparatus according to (1), wherein the sounds are voice sounds.(3) The apparatus according to (1), wherein each piece of taginformation is associated with a direction relative to the apparatus.(4) The apparatus according to (1), wherein each of the sounds has anassociated sound characteristic, and the associated sound characteristicfor any one of the sounds is different from the associated soundcharacteristic for any other of the sounds.(5) The apparatus according to (4), wherein the associated soundcharacteristic is volume.(6) The apparatus according to (4), wherein the associated soundcharacteristic is frequency.(7) The apparatus according to (4), wherein the associated soundcharacteristic is virtual sound source position.(8) The apparatus according to (1), wherein the sounds are voice soundsand include at least one keyword for each piece of tag information, andwherein output of the sounds is performed such that no two of thekeywords are output simultaneously.(9) The apparatus according to (1), wherein the sounds are output in theform of stereophonic sound.(10) The apparatus according to (1), wherein the size of the target areais determined according to the density of the positions of the pieces oftag information.(11) The apparatus according to (1), wherein the sounds are generatedbased on the respective pieces of tag information.(12) The apparatus according to (11), wherein the sounds are voicesounds and are generated to include a user-preferred word as a firstword.(13) The apparatus according to (1), further including a touch paneldisplay, wherein when the apparatus is outputting the plurality ofsounds simultaneously and a user operation is performed during theoutputting, a list indicative of the pieces of tag informationassociated with the sounds is displayed on the touch panel display.(14) The apparatus according to (1), wherein when the apparatus isoutputting the plurality of sounds simultaneously and a user operationis performed during the outputting, the apparatus outputs the pluralityof sounds in series.(15) The apparatus according to (14), wherein the user operationcomprises tapping the apparatus.(16) The apparatus according to (1), further including a display,wherein when the apparatus is outputting the plurality of soundssimultaneously indicators of the respective pieces of tag informationare displayed on the display, the indicators being displayed at virtualsound source positions relative to the position of the apparatus.(17) An information processing apparatus including: a database of pluralpieces of tag information corresponding to respective positions within atarget area, the target area having a position defined by the positionof the apparatus; and an output device to output a plurality of soundssuch that for each sound at least a portion of the sound overlaps withat least a portion of another of the sounds, each of the sounds beingindicative of a respective piece of tag information.(18) The apparatus according to (17), wherein each piece of taginformation is associated with a direction relative to the apparatus.(19) The apparatus according to (17), wherein each of the sounds has anassociated sound characteristic, and the associated sound characteristicfor any one of the sounds is different from the associated soundcharacteristic for any other of the sounds.(20) An information processing method including: receiving plural piecesof tag information corresponding to respective positions within a targetarea, the target area having a position defined by the position of anapparatus; and outputting a plurality of sounds such that for each soundat least a portion of the sound overlaps with at least a portion ofanother of the sounds, each of the sounds being indicative of arespective piece of tag information.(21) A non-transitory computer-readable medium having stored thereon acomputer-readable program for implementing an information processingmethod, the method including: receiving plural pieces of tag informationcorresponding to respective positions within a target area, the targetarea having a position defined by the position of an apparatus; andoutputting a plurality of sounds such that for each sound at least aportion of the sound overlaps with at least a portion of another of thesounds, each of the sounds being indicative of a respective piece of taginformation.

REFERENCE SIGNS LIST

-   10 AR server-   20 mobile terminal-   22 touch panel-   24 speaker-   26 microphone-   30 voice output unit-   220 GPS-   224 acceleration sensor-   228 communication section-   232, 234 area setting section-   236 information analysis section-   240 voice control section-   244, 246 display control section-   248 sound source setting section-   252 voice processing section-   256 proximity communication section

1. (canceled)
 2. A mobile terminal connectable to a server by way of acommunication network, said mobile terminal comprising: a communicationdevice to receive from the server by way of the communication networkplural pieces of tag information corresponding to respective positionswithin a target area; a speaker to output a plurality of sounds suchthat for each sound at least a portion of the sound overlaps with atleast a portion of another of the sounds, each of the sounds beingindicative of a respective piece of tag information; and a displaycontrol section configured to control displaying, on a display, aposition relationship among a current position and any one of thepositions respectively of the pieces of tag information.
 3. The mobileterminal of claim 2, wherein one keyword for each piece of taginformation is displayed in association with the position of the pieceof tag information.
 4. The mobile terminal of claim 2, wherein thetarget area has a position defined by a position of the mobile terminal.5. The mobile terminal of claim 2, wherein the sounds are output in aform of stereophonic sound.
 6. The mobile terminal of claim 2, whereinthe display is a touch panel display, and wherein when the speaker isoutputting the plurality of sounds simultaneously and a user operationis performed during the outputting, a list indicative of the pieces oftag information associated with the sounds is displayed on the touchpanel display.
 7. The mobile terminal of claim 6, wherein the useroperation comprises tapping the mobile terminal.
 8. The mobile terminalof claim 2, wherein when the speaker is outputting the plurality ofsounds simultaneously and a user operation is performed during theoutputting, the plurality of sounds is output in series.
 9. The mobileterminal of claim 8, wherein the user operation comprises tapping themobile terminal.
 10. The mobile terminal of claim 2, wherein when thespeaker is outputting the plurality of sounds simultaneously indicatorsrespectively of the pieces of tag information are displayed on thedisplay, the indicators being displayed at respective virtual soundsource positions relative to a position of the mobile terminal.
 11. Themobile terminal of claim 2, wherein the sounds are output at respectivevirtual sound source positions in accordance with an orientation of auser of the mobile terminal.
 12. The mobile terminal of claim 11,wherein an orientation of a predetermined side of the mobile terminal isthe orientation of the user.
 13. The mobile terminal of claim 11,wherein the orientation of the user is based on detection by a sensorcoupled to the user.
 14. The mobile terminal of claim 2, wherein thesounds are output to include a user preferred word as a first word. 15.The mobile terminal of claim 2, wherein the sounds are voice sounds. 16.The mobile terminal of claim 2, wherein the sounds include at least onekeyword for each piece of tag information.
 17. A mobile terminalcomprising: a storage device having a database of plural pieces of taginformation corresponding to respective positions within a target area;an audio output device to output a plurality of sounds such that foreach sound at least a portion of the sound overlaps with at least aportion of another of the sounds, each of the sounds being indicative ofa respective piece of tag information, wherein each of the sounds has anassociated sound characteristic, and the associated sound characteristicfor any one of the sounds is different from the associated soundcharacteristic for any other of the sounds; and a display controlsection configured to control displaying, on a display, a positionrelationship among a current position and any one of the positionsrespectively of the pieces of tag information.
 18. A method ofprocessing information at a mobile terminal connectable to a server byway of a communication network, the method comprising: receiving fromthe server by way of the communication network plural pieces of taginformation corresponding to respective positions within a target area;outputting a plurality of sounds such that for each sound at least aportion of the sound overlaps with at least a portion of another of thesounds, each of the sounds being indicative of a respective piece of taginformation; and controlling displaying, on a display, a positionrelationship among a current position and any one of the positionsrespectively of the pieces of tag information.
 19. A non-transitorycomputer readable-medium configured to store a computer-readableprogram, in which the program is for processing information at a mobileterminal connectable to a server by way of a communication network, theprogram comprising: receiving from the server by way of thecommunication network plural pieces of tag information corresponding torespective positions within a target area; outputting a plurality ofsounds such that for each sound at least a portion of the sound overlapswith at least a portion of another of the sounds, each of the soundsbeing indicative of a respective piece of tag information; andcontrolling displaying, on a display, a position relationship among acurrent position and any one of the positions respectively of the piecesof tag information.